/* * Copyright (C) 2012 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.hardware.camera2; import android.graphics.Point; import android.graphics.Rect; import android.hardware.camera2.impl.CameraMetadataNative; /** *

The results of a single image capture from the image sensor.

* *

Contains the final configuration for the capture hardware (sensor, lens, * flash), the processing pipeline, the control algorithms, and the output * buffers.

* *

CaptureResults are produced by a {@link CameraDevice} after processing a * {@link CaptureRequest}. All properties listed for capture requests can also * be queried on the capture result, to determine the final values used for * capture. The result also includes additional metadata about the state of the * camera device during the capture.

* */ public final class CaptureResult extends CameraMetadata { private final CameraMetadataNative mResults; private final CaptureRequest mRequest; private final int mSequenceId; /** * Takes ownership of the passed-in properties object * @hide */ public CaptureResult(CameraMetadataNative results, CaptureRequest parent, int sequenceId) { if (results == null) { throw new IllegalArgumentException("results was null"); } if (parent == null) { throw new IllegalArgumentException("parent was null"); } mResults = results; mRequest = parent; mSequenceId = sequenceId; } @Override public T get(Key key) { return mResults.get(key); } /** * Get the request associated with this result. * *

Whenever a request is successfully captured, with * {@link CameraDevice.CaptureListener#onCaptureCompleted}, * the {@code result}'s {@code getRequest()} will return that {@code request}. *

* *

In particular, * 

cameraDevice.capture(someRequest, new CaptureListener() {
     *     {@literal @}Override
     *     void onCaptureCompleted(CaptureRequest myRequest, CaptureResult myResult) {
     *         assert(myResult.getRequest.equals(myRequest) == true);
     *     }
     * };
     *
*

* * @return The request associated with this result. Never {@code null}. */ public CaptureRequest getRequest() { return mRequest; } /** * Get the frame number associated with this result. * *

Whenever a request has been processed, regardless of failure or success, * it gets a unique frame number assigned to its future result/failure.

* *

This value monotonically increments, starting with 0, * for every new result or failure; and the scope is the lifetime of the * {@link CameraDevice}.

* * @return int frame number */ public int getFrameNumber() { return get(REQUEST_FRAME_COUNT); } /** * The sequence ID for this failure that was returned by the * {@link CameraDevice#capture} family of functions. * *

The sequence ID is a unique monotonically increasing value starting from 0, * incremented every time a new group of requests is submitted to the CameraDevice.

* * @return int The ID for the sequence of requests that this capture result is a part of * * @see CameraDevice.CaptureListener#onCaptureSequenceCompleted */ public int getSequenceId() { return mSequenceId; } /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ * The key entries below this point are generated from metadata * definitions in /system/media/camera/docs. Do not modify by hand or * modify the comment blocks at the start or end. *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/ /** *

* A color transform matrix to use to transform * from sensor RGB color space to output linear sRGB color space *

*

* This matrix is either set by HAL when the request * android.colorCorrection.mode is not TRANSFORM_MATRIX, or * directly by the application in the request when the * android.colorCorrection.mode is TRANSFORM_MATRIX. *

* In the latter case, the HAL may round the matrix to account * for precision issues; the final rounded matrix should be * reported back in this matrix result metadata. *

*/ public static final Key COLOR_CORRECTION_TRANSFORM = new Key("android.colorCorrection.transform", Rational[].class); /** *

* Gains applying to Bayer color channels for * white-balance *

*

* The 4-channel white-balance gains are defined in * the order of [R G_even G_odd B], where G_even is the gain * for green pixels on even rows of the output, and G_odd * is the gain for greenpixels on the odd rows. if a HAL * does not support a separate gain for even/odd green channels, * it should use the G_even value,and write G_odd equal to * G_even in the output result metadata. *

* This array is either set by HAL when the request * android.colorCorrection.mode is not TRANSFORM_MATRIX, or * directly by the application in the request when the * android.colorCorrection.mode is TRANSFORM_MATRIX. *

* The ouput should be the gains actually applied by the HAL to * the current frame. *

*/ public static final Key COLOR_CORRECTION_GAINS = new Key("android.colorCorrection.gains", float[].class); /** *

* The ID sent with the latest * CAMERA2_TRIGGER_PRECAPTURE_METERING call *

*

* Must be 0 if no * CAMERA2_TRIGGER_PRECAPTURE_METERING trigger received yet * by HAL. Always updated even if AE algorithm ignores the * trigger *

* * @hide */ public static final Key CONTROL_AE_PRECAPTURE_ID = new Key("android.control.aePrecaptureId", int.class); /** *

* List of areas to use for * metering *

*

* Each area is a rectangle plus weight: xmin, ymin, * xmax, ymax, weight. The rectangle is defined inclusive of the * specified coordinates. *

* The coordinate system is based on the active pixel array, * with (0,0) being the top-left pixel in the active pixel array, and * (android.sensor.info.activeArraySize.width - 1, * android.sensor.info.activeArraySize.height - 1) being the * bottom-right pixel in the active pixel array. The weight * should be nonnegative. *

* If all regions have 0 weight, then no specific metering area * needs to be used by the HAL. If the metering region is * outside the current android.scaler.cropRegion, the HAL * should ignore the sections outside the region and output the * used sections in the frame metadata *

*/ public static final Key CONTROL_AE_REGIONS = new Key("android.control.aeRegions", int[].class); /** *

* Current state of AE algorithm *

*

* Whenever the AE algorithm state changes, a * MSG_AUTOEXPOSURE notification must be send if a * notification callback is registered. *

* @see #CONTROL_AE_STATE_INACTIVE * @see #CONTROL_AE_STATE_SEARCHING * @see #CONTROL_AE_STATE_CONVERGED * @see #CONTROL_AE_STATE_LOCKED * @see #CONTROL_AE_STATE_FLASH_REQUIRED * @see #CONTROL_AE_STATE_PRECAPTURE */ public static final Key CONTROL_AE_STATE = new Key("android.control.aeState", int.class); /** *

* Whether AF is currently enabled, and what * mode it is set to *

* @see #CONTROL_AF_MODE_OFF * @see #CONTROL_AF_MODE_AUTO * @see #CONTROL_AF_MODE_MACRO * @see #CONTROL_AF_MODE_CONTINUOUS_VIDEO * @see #CONTROL_AF_MODE_CONTINUOUS_PICTURE * @see #CONTROL_AF_MODE_EDOF */ public static final Key CONTROL_AF_MODE = new Key("android.control.afMode", int.class); /** *

* List of areas to use for focus * estimation *

*

* Each area is a rectangle plus weight: xmin, ymin, * xmax, ymax, weight. The rectangle is defined inclusive of the * specified coordinates. *

* The coordinate system is based on the active pixel array, * with (0,0) being the top-left pixel in the active pixel array, and * (android.sensor.info.activeArraySize.width - 1, * android.sensor.info.activeArraySize.height - 1) being the * bottom-right pixel in the active pixel array. The weight * should be nonnegative. *

* If all regions have 0 weight, then no specific focus area * needs to be used by the HAL. If the focusing region is * outside the current android.scaler.cropRegion, the HAL * should ignore the sections outside the region and output the * used sections in the frame metadata *

*/ public static final Key CONTROL_AF_REGIONS = new Key("android.control.afRegions", int[].class); /** *

* Current state of AF algorithm *

*

* Whenever the AF algorithm state changes, a * MSG_AUTOFOCUS notification must be send if a notification * callback is registered. *

* @see #CONTROL_AF_STATE_INACTIVE * @see #CONTROL_AF_STATE_PASSIVE_SCAN * @see #CONTROL_AF_STATE_PASSIVE_FOCUSED * @see #CONTROL_AF_STATE_ACTIVE_SCAN * @see #CONTROL_AF_STATE_FOCUSED_LOCKED * @see #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED * @see #CONTROL_AF_STATE_PASSIVE_UNFOCUSED */ public static final Key CONTROL_AF_STATE = new Key("android.control.afState", int.class); /** *

* The ID sent with the latest * CAMERA2_TRIGGER_AUTOFOCUS call *

*

* Must be 0 if no CAMERA2_TRIGGER_AUTOFOCUS trigger * received yet by HAL. Always updated even if AF algorithm * ignores the trigger *

* * @hide */ public static final Key CONTROL_AF_TRIGGER_ID = new Key("android.control.afTriggerId", int.class); /** *

* Whether AWB is currently setting the color * transform fields, and what its illumination target * is *

*

* [BC - AWB lock,AWB modes] *

* @see #CONTROL_AWB_MODE_OFF * @see #CONTROL_AWB_MODE_AUTO * @see #CONTROL_AWB_MODE_INCANDESCENT * @see #CONTROL_AWB_MODE_FLUORESCENT * @see #CONTROL_AWB_MODE_WARM_FLUORESCENT * @see #CONTROL_AWB_MODE_DAYLIGHT * @see #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT * @see #CONTROL_AWB_MODE_TWILIGHT * @see #CONTROL_AWB_MODE_SHADE */ public static final Key CONTROL_AWB_MODE = new Key("android.control.awbMode", int.class); /** *

* List of areas to use for illuminant * estimation *

*

* Only used in AUTO mode. *

* Each area is a rectangle plus weight: xmin, ymin, * xmax, ymax, weight. The rectangle is defined inclusive of the * specified coordinates. *

* The coordinate system is based on the active pixel array, * with (0,0) being the top-left pixel in the active pixel array, and * (android.sensor.info.activeArraySize.width - 1, * android.sensor.info.activeArraySize.height - 1) being the * bottom-right pixel in the active pixel array. The weight * should be nonnegative. *

* If all regions have 0 weight, then no specific metering area * needs to be used by the HAL. If the metering region is * outside the current android.scaler.cropRegion, the HAL * should ignore the sections outside the region and output the * used sections in the frame metadata *

*/ public static final Key CONTROL_AWB_REGIONS = new Key("android.control.awbRegions", int[].class); /** *

* Current state of AWB algorithm *

*

* Whenever the AWB algorithm state changes, a * MSG_AUTOWHITEBALANCE notification must be send if a * notification callback is registered. *

* @see #CONTROL_AWB_STATE_INACTIVE * @see #CONTROL_AWB_STATE_SEARCHING * @see #CONTROL_AWB_STATE_CONVERGED * @see #CONTROL_AWB_STATE_LOCKED */ public static final Key CONTROL_AWB_STATE = new Key("android.control.awbState", int.class); /** *

* Overall mode of 3A control * routines *

* @see #CONTROL_MODE_OFF * @see #CONTROL_MODE_AUTO * @see #CONTROL_MODE_USE_SCENE_MODE */ public static final Key CONTROL_MODE = new Key("android.control.mode", int.class); /** *

* Operation mode for edge * enhancement *

* @see #EDGE_MODE_OFF * @see #EDGE_MODE_FAST * @see #EDGE_MODE_HIGH_QUALITY */ public static final Key EDGE_MODE = new Key("android.edge.mode", int.class); /** *

* Select flash operation mode *

* @see #FLASH_MODE_OFF * @see #FLASH_MODE_SINGLE * @see #FLASH_MODE_TORCH */ public static final Key FLASH_MODE = new Key("android.flash.mode", int.class); /** *

* Current state of the flash * unit *

* @see #FLASH_STATE_UNAVAILABLE * @see #FLASH_STATE_CHARGING * @see #FLASH_STATE_READY * @see #FLASH_STATE_FIRED */ public static final Key FLASH_STATE = new Key("android.flash.state", int.class); /** *

* GPS coordinates to include in output JPEG * EXIF *

*/ public static final Key JPEG_GPS_COORDINATES = new Key("android.jpeg.gpsCoordinates", double[].class); /** *

* 32 characters describing GPS algorithm to * include in EXIF *

*/ public static final Key JPEG_GPS_PROCESSING_METHOD = new Key("android.jpeg.gpsProcessingMethod", String.class); /** *

* Time GPS fix was made to include in * EXIF *

*/ public static final Key JPEG_GPS_TIMESTAMP = new Key("android.jpeg.gpsTimestamp", long.class); /** *

* Orientation of JPEG image to * write *

*/ public static final Key JPEG_ORIENTATION = new Key("android.jpeg.orientation", int.class); /** *

* Compression quality of the final JPEG * image *

*

* 85-95 is typical usage range *

*/ public static final Key JPEG_QUALITY = new Key("android.jpeg.quality", byte.class); /** *

* Compression quality of JPEG * thumbnail *

*/ public static final Key JPEG_THUMBNAIL_QUALITY = new Key("android.jpeg.thumbnailQuality", byte.class); /** *

* Resolution of embedded JPEG * thumbnail *

*/ public static final Key JPEG_THUMBNAIL_SIZE = new Key("android.jpeg.thumbnailSize", android.hardware.camera2.Size.class); /** *

* Size of the lens aperture *

*

* Will not be supported on most devices. Can only * pick from supported list *

*/ public static final Key LENS_APERTURE = new Key("android.lens.aperture", float.class); /** *

* State of lens neutral density * filter(s) *

*

* Will not be supported on most devices. Can only * pick from supported list *

*/ public static final Key LENS_FILTER_DENSITY = new Key("android.lens.filterDensity", float.class); /** *

* Lens optical zoom setting *

*

* Will not be supported on most devices. *

*/ public static final Key LENS_FOCAL_LENGTH = new Key("android.lens.focalLength", float.class); /** *

* Distance to plane of sharpest focus, * measured from frontmost surface of the lens *

*

* Should be zero for fixed-focus cameras *

*/ public static final Key LENS_FOCUS_DISTANCE = new Key("android.lens.focusDistance", float.class); /** *

* The range of scene distances that are in * sharp focus (depth of field) *

*

* If variable focus not supported, can still report * fixed depth of field range *

*/ public static final Key LENS_FOCUS_RANGE = new Key("android.lens.focusRange", float.class); /** *

* Whether optical image stabilization is * enabled. *

*

* Will not be supported on most devices. *

* @see #LENS_OPTICAL_STABILIZATION_MODE_OFF * @see #LENS_OPTICAL_STABILIZATION_MODE_ON */ public static final Key LENS_OPTICAL_STABILIZATION_MODE = new Key("android.lens.opticalStabilizationMode", int.class); /** *

* Current lens status *

* @see #LENS_STATE_STATIONARY * @see #LENS_STATE_MOVING */ public static final Key LENS_STATE = new Key("android.lens.state", int.class); /** *

* Mode of operation for the noise reduction * algorithm *

* @see #NOISE_REDUCTION_MODE_OFF * @see #NOISE_REDUCTION_MODE_FAST * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY */ public static final Key NOISE_REDUCTION_MODE = new Key("android.noiseReduction.mode", int.class); /** *

* A frame counter set by the framework. This value monotonically * increases with every new result (that is, each new result has a unique * frameCount value). *

*

* Reset on release() *

*/ public static final Key REQUEST_FRAME_COUNT = new Key("android.request.frameCount", int.class); /** *

* An application-specified ID for the current * request. Must be maintained unchanged in output * frame *

* * @hide */ public static final Key REQUEST_ID = new Key("android.request.id", int.class); /** *

* (x, y, width, height). *

* A rectangle with the top-level corner of (x,y) and size * (width, height). The region of the sensor that is used for * output. Each stream must use this rectangle to produce its * output, cropping to a smaller region if necessary to * maintain the stream's aspect ratio. *

* HAL2.x uses only (x, y, width) *

*

* Any additional per-stream cropping must be done to * maximize the final pixel area of the stream. *

* For example, if the crop region is set to a 4:3 aspect * ratio, then 4:3 streams should use the exact crop * region. 16:9 streams should further crop vertically * (letterbox). *

* Conversely, if the crop region is set to a 16:9, then 4:3 * outputs should crop horizontally (pillarbox), and 16:9 * streams should match exactly. These additional crops must * be centered within the crop region. *

* The output streams must maintain square pixels at all * times, no matter what the relative aspect ratios of the * crop region and the stream are. Negative values for * corner are allowed for raw output if full pixel array is * larger than active pixel array. Width and height may be * rounded to nearest larger supportable width, especially * for raw output, where only a few fixed scales may be * possible. The width and height of the crop region cannot * be set to be smaller than floor( activeArraySize.width / * android.scaler.maxDigitalZoom ) and floor( * activeArraySize.height / android.scaler.maxDigitalZoom), * respectively. *

*/ public static final Key SCALER_CROP_REGION = new Key("android.scaler.cropRegion", android.graphics.Rect.class); /** *

* Duration each pixel is exposed to * light. *

* If the sensor can't expose this exact duration, it should shorten the * duration exposed to the nearest possible value (rather than expose longer). *

*

* 1/10000 - 30 sec range. No bulb mode *

*/ public static final Key SENSOR_EXPOSURE_TIME = new Key("android.sensor.exposureTime", long.class); /** *

* Duration from start of frame exposure to * start of next frame exposure *

*

* Exposure time has priority, so duration is set to * max(duration, exposure time + overhead) *

*/ public static final Key SENSOR_FRAME_DURATION = new Key("android.sensor.frameDuration", long.class); /** *

* Gain applied to image data. Must be * implemented through analog gain only if set to values * below 'maximum analog sensitivity'. *

* If the sensor can't apply this exact gain, it should lessen the * gain to the nearest possible value (rather than gain more). *

*

* ISO 12232:2006 REI method *

*/ public static final Key SENSOR_SENSITIVITY = new Key("android.sensor.sensitivity", int.class); /** *

* Time at start of exposure of first * row *

*

* Monotonic, should be synced to other timestamps in * system *

*/ public static final Key SENSOR_TIMESTAMP = new Key("android.sensor.timestamp", long.class); /** *

* The temperature of the sensor, sampled at the time * exposure began for this frame. *

* The thermal diode being queried should be inside the sensor PCB, or * somewhere close to it. *

*/ public static final Key SENSOR_TEMPERATURE = new Key("android.sensor.temperature", float.class); /** *

* State of the face detector * unit *

*

* Whether face detection is enabled, and whether it * should output just the basic fields or the full set of * fields. Value must be one of the * android.statistics.info.availableFaceDetectModes. *

* @see #STATISTICS_FACE_DETECT_MODE_OFF * @see #STATISTICS_FACE_DETECT_MODE_SIMPLE * @see #STATISTICS_FACE_DETECT_MODE_FULL */ public static final Key STATISTICS_FACE_DETECT_MODE = new Key("android.statistics.faceDetectMode", int.class); /** *

* List of unique IDs for detected * faces *

*

* Only available if faceDetectMode == FULL *

*/ public static final Key STATISTICS_FACE_IDS = new Key("android.statistics.faceIds", int[].class); /** *

* List of landmarks for detected * faces *

*

* Only available if faceDetectMode == FULL *

*/ public static final Key STATISTICS_FACE_LANDMARKS = new Key("android.statistics.faceLandmarks", int[].class); /** *

* List of the bounding rectangles for detected * faces *

*

* Only available if faceDetectMode != OFF *

*/ public static final Key STATISTICS_FACE_RECTANGLES = new Key("android.statistics.faceRectangles", android.graphics.Rect[].class); /** *

* List of the face confidence scores for * detected faces *

*

* Only available if faceDetectMode != OFF. The value should be * meaningful (for example, setting 100 at all times is illegal). *

*/ public static final Key STATISTICS_FACE_SCORES = new Key("android.statistics.faceScores", byte[].class); /** *

* A low-resolution map of lens shading, per * color channel *

*

* Assume bilinear interpolation of map. The least * shaded section of the image should have a gain factor * of 1; all other sections should have gains above 1. * the map should be on the order of 30-40 rows, and * must be smaller than 64x64. *

* When android.colorCorrection.mode = TRANSFORM_MATRIX, the map * must take into account the colorCorrection settings. *

*/ public static final Key STATISTICS_LENS_SHADING_MAP = new Key("android.statistics.lensShadingMap", float[].class); /** *

* The best-fit color channel gains calculated * by the HAL's statistics units for the current output frame *

*

* This may be different than the gains used for this frame, * since statistics processing on data from a new frame * typically completes after the transform has already been * applied to that frame. *

* The 4 channel gains are defined in Bayer domain, * see android.colorCorrection.gains for details. *

* This value should always be calculated by the AWB block, * regardless of the android.control.* current values. *

*/ public static final Key STATISTICS_PREDICTED_COLOR_GAINS = new Key("android.statistics.predictedColorGains", float[].class); /** *

* The best-fit color transform matrix estimate * calculated by the HAL's statistics units for the current * output frame *

*

* The HAL must provide the estimate from its * statistics unit on the white balance transforms to use * for the next frame. These are the values the HAL believes * are the best fit for the current output frame. This may * be different than the transform used for this frame, since * statistics processing on data from a new frame typically * completes after the transform has already been applied to * that frame. *

* These estimates must be provided for all frames, even if * capture settings and color transforms are set by the application. *

* This value should always be calculated by the AWB block, * regardless of the android.control.* current values. *

*/ public static final Key STATISTICS_PREDICTED_COLOR_TRANSFORM = new Key("android.statistics.predictedColorTransform", Rational[].class); /** *

* The HAL estimated scene illumination lighting * frequency *

*

* Report NONE if there doesn't appear to be flickering * illumination *

* @see #STATISTICS_SCENE_FLICKER_NONE * @see #STATISTICS_SCENE_FLICKER_50HZ * @see #STATISTICS_SCENE_FLICKER_60HZ */ public static final Key STATISTICS_SCENE_FLICKER = new Key("android.statistics.sceneFlicker", int.class); /** *

* Table mapping blue input values to output * values *

*

* Tonemapping / contrast / gamma curve for the blue * channel, to use when android.tonemap.mode is CONTRAST_CURVE. *

* See android.tonemap.curveRed for more details. *

*/ public static final Key TONEMAP_CURVE_BLUE = new Key("android.tonemap.curveBlue", float[].class); /** *

* Table mapping green input values to output * values *

*

* Tonemapping / contrast / gamma curve for the green * channel, to use when android.tonemap.mode is CONTRAST_CURVE. *

* See android.tonemap.curveRed for more details. *

*/ public static final Key TONEMAP_CURVE_GREEN = new Key("android.tonemap.curveGreen", float[].class); /** *

* Table mapping red input values to output * values *

*

* Tonemapping / contrast / gamma curve for the red * channel, to use when android.tonemap.mode is CONTRAST_CURVE. *

* Since the input and output ranges may vary depending on * the camera pipeline, the input and output pixel values * are represented by normalized floating-point values * between 0 and 1, with 0 == black and 1 == white. *

* The curve should be linearly interpolated between the * defined points. The points will be listed in increasing * order of P_IN. For example, if the array is: [0.0, 0.0, * 0.3, 0.5, 1.0, 1.0], then the input->output mapping * for a few sample points would be: 0 -> 0, 0.15 -> * 0.25, 0.3 -> 0.5, 0.5 -> 0.64 *

*/ public static final Key TONEMAP_CURVE_RED = new Key("android.tonemap.curveRed", float[].class); /** * @see #TONEMAP_MODE_CONTRAST_CURVE * @see #TONEMAP_MODE_FAST * @see #TONEMAP_MODE_HIGH_QUALITY */ public static final Key TONEMAP_MODE = new Key("android.tonemap.mode", int.class); /** *

* This LED is nominally used to indicate to the user * that the camera is powered on and may be streaming images back to the * Application Processor. In certain rare circumstances, the OS may * disable this when video is processed locally and not transmitted to * any untrusted applications. *

* In particular, the LED *must* always be on when the data could be * transmitted off the device. The LED *should* always be on whenever * data is stored locally on the device. *

* The LED *may* be off if a trusted application is using the data that * doesn't violate the above rules. *

* * @hide */ public static final Key LED_TRANSMIT = new Key("android.led.transmit", boolean.class); /** *

* Whether black-level compensation is locked * to its current values, or is free to vary *

*

* When set to ON, the values used for black-level * compensation must not change until the lock is set to * OFF *

* Since changes to certain capture parameters (such as * exposure time) may require resetting of black level * compensation, the HAL must report whether setting the * black level lock was successful in the output result * metadata. *

* The black level locking must happen at the sensor, and not at the ISP. * If for some reason black level locking is no longer legal (for example, * the analog gain has changed, which forces black levels to be * recalculated), then the HAL is free to override this request (and it * must report 'OFF' when this does happen) until the next time locking * is legal again. *

*/ public static final Key BLACK_LEVEL_LOCK = new Key("android.blackLevel.lock", boolean.class); /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~ * End generated code *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/ /** *

* List of the {@link Face Faces} detected through camera face detection * in this result. *

*

* Only available if {@link #STATISTICS_FACE_DETECT_MODE} {@code !=} * {@link CameraMetadata#STATISTICS_FACE_DETECT_MODE_OFF OFF}. *

* * @see Face */ public static final Key STATISTICS_FACES = new Key("android.statistics.faces", Face[].class); }